feat: crowdaction description markdown support

[Xazin]

No description provided.

[codecov]

Codecov Report

Merging #375 (d7926c1) into development (023d67e) will decrease coverage by 0.89%.
The diff coverage is 0.00%.

@@               Coverage Diff               @@
##           development     #375      +/-   ##
===============================================
- Coverage        66.55%   65.67%   -0.89%     
===============================================
  Files              157      160       +3     
  Lines             4010     4064      +54     
===============================================
  Hits              2669     2669              
- Misses            1341     1395      +54     

Impacted Files	Coverage Δ
...rowdaction_details/crowdaction_details_screen.dart	0.00% <0.00%> (ø)
...ction_details/widgets/crowdaction_description.dart	0.00% <0.00%> (ø)
...ation/shared_widgets/expandable_markdown_text.dart	0.00% <0.00%> (ø)
lib/presentation/themes/markdown_stylesheet.dart	0.00% <0.00%> (ø)

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